Ok did some digging: Error 8 in the spec is for PDN connection request is administratively prohibited from the HSGW (HRPD server gateway - which is defined in the 3GPP2 to provide the interworking between HRPD and EPC networks. Its part of the eHRPD (evolved). Basically Sprint CDMA to LTE through EPC is SCREWED UP and they need to fix it! FIX IT!!!!!!!!!!!!!!!!!!!!!!!!!! I'm going to call an (ex?!?)-tech buddy of mine, don't think she works there anymore, but it can't hurt, she might be able to kick some people around and get the correct peeps on this.

And as far as the 3 and 5 error codes they are P-GW address not available and connection rejected. That's means Sprint has your account set up a little better than mine, but still not correct. Everyone call and get a SPRINT tech on the line and tell them to fix the LTE to CDMA connection, that is my assumption at least (I'm an electrical engineer, but work in semiconductors not networking, at least not anymore)

Okay so here is the update on the VSNCP Registraton Error. I spoke to Motorola and was told that the 3 error is in regards to a software error with MMS picture messaging. I was asked to call sprint and ask them to help edit my profile. If you go to the dial pad and punch ##3282# into your dial pad a menu will come. up. Click on data profile. Your user name should be yourname@sprintpcs.com. Anything extra such as an extra .com needs to be removed. You have to call sprint to get the pass code that will allow you to edit this. Once you update your user name power your phone off and on. Go in and check your data profile again to ensure that it reads properly The VSNCP error should be gone. It is also good to double check and make sure that you can connect tot he internet still. I have done this and it appears to be working. Sprint also said that they and Motorola are aware of this issue and plan to further correct it in the next phone software update. I will update if I find out anything further. Motorola is due to follow up with me in the next day or so. I hope some of you find this helpful.

How are you picking up a 4G signal? Unless I read incorrectly, the phone only receives 3G and 4G-LTE (a different freq and system than the old 4G). I am getting the same errors and from what I have deduced it is coming from the lack of a LTE network. These errors relate to LTE protocols.

I have a new Photon Q 4G LTE phone and I get about 3 of these each day . It seems to alternate between VSNCP registration error 5 and 3. Aren't these LTE errors? Sprint doesn't have LTE in my area. I also noticed some people think this phone gets the old 4G network, it only receives 3G and the mostly promised future LTE network that is very, very limited right now.

I'm pretty sure it's a connection failure notice. I often notice it when switching from 3g to 4g because the 4g service is still flaky here and when the switch occurs the internet is disabled for a moment.

I'm mostly certain it is a problem with the Motorola Service app. If you turn on data restriction and restrict data for that app the VSNCP errors appear much more frequently.

In short, i think the app expects constant connection to the internet, but Sprint's network is a bit spotty, so results vary.

I live in Baltimore and LTE is live here. When I say 4g, I am referring to LTE and not the old WiMax 4G. When connected to LTE, the 3g icon on the phone changes to read "4g", not "LTE" as some phones do.

I just got the phone a few days ago and encountered the error, too. I was about to call, but just a few minutes ago I received a notice for an update and once that was installed, all the messages with photos I had gotten errors on finally downloaded!